We are unable to to view or add the requester name on the change order PO Line level

Hello,

We are facing an issue where we are unable to view or add the requester's name on the PO line level. and due to this, we are unable to trigger the approval due to that. Can someone please provide some solution whether we need to add some privileges to the standard roles or some other profile value to be enabled?

Thanks,

Krupesh Joshi